A biopsy device includes a probe portion and a holster portion that may be coupled together. The probe portion includes a rotatable tissue sample holder that is configured to hold tissue samples. One or more portions of the tissue sample holder may be formed of a transparent or translucent material, e.g., a translucent manifold and shaft, transparent or translucent tissue sample trays, and a transparent cup that is external to the manifold and trays. The holster portion may include one or more sources of light, such as light emitting diodes (LEDs). The LEDs may be configured to illuminate at least a portion of the tissue sample holder, such as to facilitate viewing of tissue samples in the tissue sample holder. For instance, one LED may be aligned with the shaft of the tissue sample holder, while two additional LEDs may be positioned on both sides of the shaft.